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CVE-2026-53367

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: selinux: fix avdcache auditing The per-task avdcache was incorrectly saving and reusing the audited vector computed by avc_audi…

Published Jul 19, 2026EPSS 0.16%

Overview

CVE-2026-53367 is a medium-severity vulnerability. It was published on July 19, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

selinux: fix avdcache auditing

The per-task avdcache was incorrectly saving and reusing the

audited vector computed by avc_audit_required() rather than

recomputing based on the currently requested permissions and

distinguishing the denied versus allowed cases. As a result,

some permission checks were not being audited, e.g.

directory write checks after a previously cached directory

search check.

[PM: line wrap tweaks]

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/bce6a32bc888dfebb6a7d4dee454228b71ed8369Refgit.kernel.org/stable/c/e3e722ea88e051ae5361dc540c01ba18f87b5ffdRefgit.kernel.org/stable/c/f92d542577db878acfd21cc18dab23d03023b217

How CyberStrike helps

Frequently asked questions

What is CVE-2026-53367?

CVE-2026-53367 is a medium-severity vulnerability. It was published on July 19, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-53367?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-53367?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-53367?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-53367 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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